Jumbo Mortgage Qualification for Tech Employees: Above the GSE Limits

Fannie Mae and Freddie Mac set the conforming loan limit each year. For 2025, it’s $806,500 for most of the country and $1,209,750 in designated high-cost markets (San Francisco, San Mateo, Alameda, Santa Clara, Manhattan, parts of Orange County, parts of Maryland and DC). Loans above those limits are jumbo.

For tech employees buying in coastal markets, almost every purchase is jumbo. A $1.8M home with 20% down needs a $1.44M loan, well above even the high-cost conforming limit. The underwriting rules change, the rate structure changes, and the documentation burden increases.

This article covers how jumbo underwriting differs from conforming for a typical senior IC with $200K base plus $250K RSU income.

Rate differences: jumbo vs conforming

Historically jumbo rates were 25-75 bps higher than conforming. That’s flipped occasionally, jumbo rates have sometimes been lower than conforming when lenders viewed high-net-worth borrowers as lower credit risk than median borrowers. Current market (early 2026):

Conforming 30-year fixed: roughly 7.0-7.5%
Jumbo 30-year fixed: roughly 7.0-7.25%
Jumbo 7/1 ARM: 6.5-6.75%

Pricing varies by lender, by loan-to-value, by credit score, and by depository relationship. Banks where you hold investment assets often offer 25-50 bps discounts (relationship pricing).

Documentation: the extra jumbo layer

Conforming loans through Fannie/Freddie follow standardized documentation requirements. Jumbo lenders set their own. The additional paperwork typically includes:

2 years of tax returns (all pages, all schedules, all K-1s)
2 years of W-2s
2-3 months of paystubs
2-3 months of bank statements (all accounts)
Brokerage statements
Retirement account statements
HELOC / other mortgage statements
Letter of explanation for any large deposits
Employment verification letter
Rental income documentation if applicable
Divorce decree if applicable
Gift letters for any recent funds

Jumbo lenders scrutinize asset movements. A $150K deposit 45 days before closing will generate questions. Keep funds in place for at least 60 days before application, or document the source thoroughly.

LTV and reserve requirements

Conforming loans go up to 97% LTV for first-time buyers, 95% for repeat buyers. Jumbo loans typically cap at:

90% LTV for loans up to $1.5M
85% LTV for loans $1.5-$2.5M
80% LTV for loans $2.5-$3.5M
75% LTV above $3.5M

Reserves (liquid assets remaining after down payment and closing costs) are required:

Conforming: typically 2-6 months of PITI
Jumbo: 6-12 months PITI for loans under $2M, 12-24 months for larger loans

Reserves can include retirement accounts at 60-70% of face value (haircut for early withdrawal penalty assumption). For a senior IC with $1.5M in 401(k) and IRA, about $900K-$1M counts toward reserves.

DTI tolerance

Conforming loans cap DTI (debt-to-income) at 43-45% typically, though automated underwriting can sometimes approve higher. Jumbo lenders are tighter:

Most cap DTI at 43%
Some portfolio lenders accept 45-49% for strong borrowers
Private bank jumbo (Schwab, wealth-desk lenders) sometimes ignore DTI for clients with $5M+ in assets

For a senior IC with $470K income and $30K in non-mortgage debt service (car, student loans), the monthly PITI capacity at 43% DTI is about $14,000. That supports a loan around $1.8M at current rates.

The RSU income question

Everything in rsu-income-mortgage-underwriting applies to jumbo, with a twist: jumbo lenders are often more flexible on RSU sourcing. A 2-year history is still preferred, but some will accept:

12 months of history plus a promotion that increased RSU grants
A large recent grant with 12+ months of vesting ahead
RSU income from a pre-IPO company valued at the 409A price (with heavy haircut)

Portfolio lenders and private-bank desks at Schwab, Morgan Stanley, JPM Private Bank, and First Republic successor desks are more flexible than wholesale lenders.

Asset-based verification

Jumbo lenders care deeply about asset verification because the loan size is larger. They typically:

Verify 60+ days of asset history to confirm “seasoned” funds
Confirm brokerage asset title (is the account actually in the borrower’s name?)
Identify large deposits and trace their source
Verify retirement account balances with recent statements

For tech employees with stock positions, the asset verification includes:

Vested RSUs held in the brokerage account
Unvested RSUs (often partially credited at 40-60% of face value)
ESPP holdings
Options (usually excluded from asset calculation until exercised)
Pre-IPO equity (usually excluded or heavily haircut)

Non-QM and bank-statement paths

For tech employees whose income doesn’t fit the W-2 mold, founders paying themselves minimally, equity-heavy compensation with low base, consulting income, non-QM jumbo lenders offer alternative paths:

Bank-statement programs: 12-24 months of personal or business bank statements
Asset-depletion programs: qualify on net worth divided over loan term
Tax-return programs: qualify on Schedule C or K-1 income

Rates on non-QM jumbo run 50-200 bps higher than standard jumbo. Down payment requirements are typically higher (20-30%).

Relationship pricing and wealth-desk access

Many jumbo loans are originated through private-bank or wealth-desk channels where the borrower already has an investment relationship. Benefits:

Rate discounts of 25-75 bps
Flexible DTI and income documentation
Faster underwriting
Ability to pledge assets as collateral instead of traditional secured paid-in cash

To qualify for wealth-desk pricing, lenders typically require $1M-$3M of investable assets on deposit with their firm. For a senior IC with liquid assets of $2M+, this is often the lowest-cost path.

Frequently asked

What’s the break point between conforming and jumbo in my market? The high-cost limit for 2025 is $1,209,750 in designated counties. Check FHFA’s county list. If your home price minus 20% down exceeds this, you’re in jumbo territory.

Do jumbo rates price off the same benchmark as conforming? No. Conforming rates derive from the MBS market tied to Fannie/Freddie. Jumbo rates are set by private lenders against their own cost of capital, which varies by lender.

Can I use an SBLOC to cover part of the down payment? Yes, but lenders treat the SBLOC as a liability that increases DTI. The SBLOC collateral also can’t be double-counted as reserves. Many jumbo borrowers avoid SBLOC during the loan process.

Does the §6501 three-year statute apply to mortgage tax return review? Irrelevant directly, lenders can request returns beyond 3 years regardless of IRS statute. The practical issue is that tax returns are usually furnished directly via 4506-C transcript retrieval from IRS, which goes back 4 years.

How does trailing nexus affect jumbo qualification? Not the lender’s concern directly, but if you moved from California and California is still taxing your RSU income under trailing-nexus rules, your state tax bill may be higher than your W-2 alone suggests. Disclose all state tax liability in the loan application.